Paper-cutting machine.



"0.703322 Patented Sep t. 9,1902.

H. w. MATHER. PAPER CUTTING MACHINE.

(A plication filed Nov. 22, 1900.) (No Mode l.) 2 Sheets-Sheet -L Patented Sept 9; I902.

, H. W. MATHER.

PAPER CUTTING MACHINE.

(Application filed Nov. 22, 1900.) (No mm.) 2 Sheets-sheaf 2.

Nllil'i) Stat cs Farsi-vi @rricst HENRY \V. MATHER, OF RQSEVILLE, NE WV JERSEY.

eaesaourrmc iviaoasns.

S?EGIFIOATION forming part of Letters Patent No. 708,722, dated September 9, 1902.:

' Application filc'd November 22,1900- Serisl 110. 37,351. (No model.)

To all whmi-z, it may conceive."

Be it known that I, HENRY W. MATHER, a citizen? of the United States, residing at Roseville, in the county of Essex and State ofNeW Jersey, have invented certain new and useful Improvements in Paper-Cutting Machines, of which the following is a specification.

This invention relates to the general class of paper-cutting machines, and particularly l0 tothose usedi'or slittinga long strip of paper are cutters which produce a shear cut.

. and described in the United States Patent No.

620,944, granted to me March 14, 1899. In

these constructions two sets of rotating cutso tors are employed, the edges of which slightly overlap and press laterally against each other likethe two blades of a pair of shears. It is found that this mode of cutting is not practicable for thin soft papers,.such as tissue-paper, which requires such delicate manipulation thatlit is found impossibleto slit a roll of such paper properly on machines having a shear cut, I

The present invention has in view the pro- 0 duction of a cuttingmachine' which will split a strip'of tissue-paper into narrower strips in a continuous manner, the strips being smooth at their edges and of perfectly uniform Width; and it consists, broadly and essentially, in

passing the strip while strained or drawn smoothly over a roll or surface provided with narrow grooves along the lines to be out imdcr sharp knives situated at the respective grooves and extending slightly into the same,

no but not in lateral contact with the'wall of the groove. The knife thus splits the paper or divides it along the line where it is strained across or bridges the groove in the supporting roller or platc. Preferably the grooved support for the paper will be a rotating roller groovm circuinlerentially along the lines of thecui', and the knives will be in the form of thin circular disks rotativcly mounted on a shaft properly distanced to coincide or registerwiih the respective grooves in the supportingroller and having very sharp edges. For

couvcnirnco in varying the width of the strips produced the supporting grooved roller may bemade up'of disks secured on a shaft, and the ring cutters or knives will be distanced by washers of different thicknesses. This feature of adjustment to suit the difference in Wldiill of the strips to be produced is not I in'itself new and will be fonnd in the above- In the accorn panying drawings, which illustrate an embodiment of the invention, Figure 1 is a sectionai elevation of a machine embodying my invention. This view is designed to show the positions of the respective parts of the machine as a whole. Fig. 2 is a plan view of a part of the machine on a larger scale than Fig. l and showing a paper-supporting roller and cutting-roller. Fig. 3 is a crosssection of the rollers. Fig. 4 is a fragmentary view, on a large scale, illustrating the principle involved in the cutting or slitting of the paper. rator to he hereinafter described. I 1 designates the frame of the mach-inaaud Fig. 5 is a view illustrating the sepa- 2 the hearings therein for the roll of paper X to be slitted into narrow strips. The strip a of paper from the roll X passes about snit-- able gnide-rollers3 to the grooved supporting-roller a and thence to the roll X". The

slitted paper forming the roll X is wound on a shaft or arbor 5, the ends of which are guided in upright grooves 6 in the machineframe, and said rollissupported at one. side on the roller 4 and at the other side on a roughened supporting and feeding roller 7 adjacent to the roller a. Pressing on the top of the roll X is a separz'tting-roller 8, (to be hereinafter fully described,) mounted rotativelyin links 9, pendent from zhheavy frame 10, hinged at 11 in theinachinc-frame. The journals of the roller 8 engage the grooves (3 in theframe.

12 is the cutting or slitting roller.

The rollers 1,7, and 12 are driven at a uniform speed by suitable gearing. It has not been considered necessary to illustrate and minutely describe all the details of the machine, as these are mainly old and well known, and only such portions are shown herein as will aid in illustrating the present invention.

For example, in the machines now in use will 9 cular sharp knives 14, also :2. reeves the roller 4 is a cutting-roller operating to produce a shear out with the roller 12, while in the present construction the roller 4 is not a ently constructed to serve as a separator. It

may be stated here that it is a common practics in machines of this character to employ two cutting-rollers 12, as shown herein, when the paper is to be divided into quite narrow strips, one cut tingroller producing strips, say, of double width and the other splitting these strips. This feature, however, has nothing to do with the present invention, this invention residing in the construction and relative arrangementof the roller 4 and a single cutting-roller 12. The roller 4 has formed in it narrow circumferential grooves 13, properly spaced, and the cutter-roller 12 has cirproperly spaced, and when the two'rollers are brought together the edge of the knife or cuttingdisk 14 on the roller 12 will enter to a'slight extent the groove 13 in the roller 4, but not so as to touch or bear laterally on the side Wall of said groove. Fig. 4 illustrates the principle involved. The paper a; is drawn smoothly and tightly over the roller 4-, bridging the groove 13 therein, and the knife or cutter 14: splits the paper along the bridge.

As before indicated, the knives or cutters. 14 may be disks of thin sheet-steel distanced by Washers 15 of suitable thickness, and the roller 4 maybe made up of washer-like rlng's 16 of suitable thickness, the grooves 13 being formed by raohets and one wall'of the groove being on the next adjacent washer. The roll K is of course made up of numerous rolls, each consisting of a narrow strip of paper, the several. rolls being situated side by side and. so close together as to present theappcarance of a single roll. It is desirable to very slightly separate these rolls during the slitting and winding in order that they may not adhere together when removed from the arbor, and this is the more important when the paper is very thin and soft.

is so constructed as to form a separatingroller as Well, and to efiect this the said roller is provided with a slight circumferential Therefore to effect this separation'the pressureroller's between. two adjacent rolls of narrow strips in the roll X and slightly separate them. In practice it will be found convenient to make this hearing and separating roller of circular blades or disks separated by distancing-washers, as in the case of the cutting-roller 12, and this is the construction herein shown.

The important and novel feature of the'cutting devices of the present invention resides in the grooved supporting-surface for the paper being in the form of a roller which moves with the paper or which rotates and has a pcripheralspeed equalto the speed of the paper, means being employed for drawing the paper snugly over said roller during its travel.

Having, thus described my invention, I claim 1. In a machine for slitting paper into strips, the combination with the slitting mechanism, and means for rolling up the slitted paper, of means for separating the rolls of strips,said means comprising a pressure-roller 8, on the top of the roll of slitted paper, said roller having a projecting V-shaped edge which enters the slit between the strips and Wedges them'apart, substantially as set forth.

2. In a machine for slitting paper into strips, the combination with the circumferentialIy-grooved roller 4, the slitting-roller'12, having its cutters set to register with the grooves in the roller 4, and the said cutters,

of the roughened bearing. and driving roller 7 7, and upright guides, for the shaft 5, said shaft being so situated above the roller 7 that the roll of slitted paper bears peripherally on the latter, substantially as set forth.

3. In a machine for slitting paper into strips, the combination with the circnmfer entially-grooved roller 1, the slitting-1'oller 12, provided with'cutters which register with the respective grooves in the roller 4, the bearing and driving roller 7, and the shaft 5 for the elitted paper, of means for separating the rolls of strips, said means comprising a pressure-roller on the top of the roll of slitted paper, said roller having projecting V-shapod edges which enter the slits between the strips and Wedge them forth. v

in witness whereof I have hereunto signed my hams, this Mthday of October, 1900, in the presence of two subscribing witnesses.

HENRY W. MATHER. Witnesses:

iiinnnr Connnrr i nrisr. ."Ross.

apart, substantially as net I 

